26.10: Equilibrium Constants for Real Gases Are Expressed in Terms of Partial Fugacities

26.11: Thermodynamic Equilibrium Constants Are Expressed in Terms of Activities

26.12: The Use of Activities Makes a Significant Difference in Solubility Calculations Involving Ionic Species

26: WebAssign Answer Entry Tutorials

Chapter 27: The Kinetic Theory of Gases

27: End of Chapter Problems (16)

27.1: The Average Translational Kinetic Energy of the Molecules in a Gas Is Directly Proportional to the Kelvin Temperature

27.2: The Distribution of the Components of Molecular Speeds Are Described by a Gaussian Distribution

27.3: The Distribution of Molecular Speeds Is Given by the Maxwell–Boltzmann Distribution

27.4: The Frequency of Collisions That a Gas Makes with a Wall Is Proportional to Its Number Density and to the Average Molecular Speed

27.5: The Maxwell–Boltzmann Distribution Has Been Verified Experimentally

27.6: The Mean Free Path Is the Average Distance a Molecule Travels Between Collisions

27.7: The Rate of a Gas-Phase Chemical Reaction Depends Upon the Rate of Collisions in which the Relative Kinetic Energy Exceeds Some Critical Value

27: WebAssign Answer Entry Tutorials

Chapter 28: Chemical Kinetics I: Rate Laws

28: End of Chapter Problems (13)

28.1: The Time Dependence of a Chemical Reaction Is Described by a Rate Law

28.2: Rate Laws Must Be Determined Experimentally

28.3: First-Order Reactions Show an Exponential Decay of Reactant Concentration with Time

28.4: The Rate Laws for Different Reaction Orders Predict Different Behaviors for the Time-Dependent Reactant Concentration

28.5: Reactions Can Also Be Reversible

28.6: The Rate Constants of a Reversible Reaction Can Be Determined Using Relaxation Methods

28.7: Rate Constants Are Usually Strongly Temperature Dependent

28.8: Transition-State Theory Can Be Used to Estimate Reaction Rate Constants

28: WebAssign Answer Entry Tutorials

Chapter 29: Chemical Kinetics II: Reaction Mechanisms

29: End of Chapter Problems (14)

29.1: A Mechanism is a Sequence of Single-Step Chemical Reactions called Elementary Reactions

29.2: The Principle of Detailed Balance States That when a Complex Reaction is at Equilibrium, the Rate of the Forward Process Is Equal to the Rate of the Reverse Process for Each and Every Step of the Reaction Mechanism

29.3: When Are Consecutive and Single-Step Reactions Distinguishable?

29.4: The Steady-State Approximation Simplifies Rate Expressions by Assuming That d[I]/dt = 0, where I Is a Reaction Intermediate

29.5: The Rate Law for a Complex Reaction Does Not Imply a Unique Mechanism

30.8: The Velocity and Angular Distribution of the Products of a Reactive Collision Provide a Molecular Picture of the Chemical Reaction

30.9: Not All Gas-Phase Chemical Reactions Are Rebound Reactions

30.10: The Potential-Energy Surface for the Reaction F(g) + D2(g) ⇒ DF(g) + D(g) Can Be Calculated Using Quantum Mechanics

30: WebAssign Answer Entry Tutorials

Chapter 31: Solids and Surface Chemistry

31: End of Chapter Problems (13)

31.1: The Unit Cell Is the Fundamental Building Block of a Crystal

31.2: The Orientation of a Lattice Plane Is Described by Its Miller Indices

31.3: The Spacing Between Lattice Planes Can Be Determined from X-Ray Diffraction Measurements

31.4: The Total Scattering Intensity Is Related to the Periodic Structure of the Electron Density in the Crystal

31.5: The Structure Factor and the Electron Density Are Related by a Fourier Transform

31.6: A Gas Molecule Can Physisorb or Chemisorb to a Solid Surface

31.7: Isotherms Are Plots of Surface Coverage as a Function of Gas Pressure at Constant Temperature

31.8: The Langmuir Isotherm Can Be Used to Derive Rate Laws for Surface-Catalyzed Gas-Phase Reactions

31.9: The Structure of a Surface is Different from That of a Bulk Solid

31.10: The Reaction Between H2(g) and N2(g) to Make NH3(g) Can Be Surface Catalyzed

31: WebAssign Answer Entry Tutorials

WebAssign is proud to be the exclusive online homework system for Physical Chemistry: A Molecular Approach, 1st edition, by McQuarrie and Simon. As the first modern physical chemistry textbook to cover quantum mechanics before thermodynamics and kinetics, this book provides a contemporary approach to the study of physical chemistry. The WebAssign component of this text features 450 problems, each with links to the relevant portions of a complete eBook (access is optional). The questions cover every concept in this chemistry course.

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